Pith Number

pith:VGXL7J2M

pith:2007:VGXL7J2MQSCCR5CR2WSNZEUCAJ

not attested not anchored not stored refs pending

Spatially Resolved Spitzer-IRS Spectroscopy of the Central Region of M82

B. Groves, B. R. Brandl, J. D. Smith, J. R. Houck, L. Armus, N. M. F\"orster Schreiber, P. Beir\~ao, P. N. Appleton, V. Charmandaris

arxiv:0711.3310 v1 · 2007-11-21 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGXL7J2MQSCCR5CR2WSNZEUCAJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T17:06:45.979926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9aebfa74c848428f451d5a4dc928202588b409d31a87e7d465bca9f05e68063

Aliases

arxiv: 0711.3310 · arxiv_version: 0711.3310v1 · doi: 10.48550/arxiv.0711.3310 · pith_short_12: VGXL7J2MQSCC · pith_short_16: VGXL7J2MQSCCR5CR · pith_short_8: VGXL7J2M

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/VGXL7J2MQSCCR5CR2WSNZEUCAJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a9aebfa74c848428f451d5a4dc928202588b409d31a87e7d465bca9f05e68063

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b10f0af4357ee022e115a663818fa50d119d0bde0d7ef95cd7686acc25ce886d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-21T15:50:40Z",
    "title_canon_sha256": "270ce1f62ba15eae3524e02af1c18e0cd61d2601e79d36aaf2d5418e8db68f2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.3310",
    "kind": "arxiv",
    "version": 1
  }
}